Online surveys: Consumers are asked to complete a survey, including their demographic information and product and lifestyle interests. This information is used as a sales lead for advertisers, who purchase the consumer's information if provided. The consumer may 'opt-in' to receive correspondence from the advertiser and is therefore considered a qualified lead. http://emaildripcampaigns.com/wp-content/uploads/sites/2/2016/12/emaildripcampaigns-header.png
One of the first lessons that I learned about email marketing campaigns is to give sincere thought to how a customer perceives every component of the email, starting with the subject line. Media headlines grab your attention and get you to listen longer or read further. A meaningful subject line for an email offers the same punch. Subject lines should be relevant, interesting and genuine.
Email marketing has evolved rapidly alongside the technological growth of the 21st century. Prior to this growth, when emails were novelties to the majority of customers, email marketing was not as effective. In 1978, Gary Thuerk of Digital Equipment Corporation (DEC) sent out the first mass email[1] to approximately 400 potential clients via the Advanced Research Projects Agency Network (ARPANET). This email resulted in $13 million worth of sales in DEC products, and highlighted the potential of marketing through mass emails. However, as email marketing developed as an effective means of direct communication, users began blocking out content from emails with filters and blocking programs. In order to effectively communicate a message through email, marketers had to develop a way of pushing content through to the end user, without being cut out by automatic filters and spam removing software.
Frequency matters, and how often you send emails can have a significant impact on your revenue and email engagement (and unsubscribe) rates. Send too much and subscribers can suffer email fatigue causing them to disengage and unsubscribe. Send too few and you lose the attention of your audience. They may even forget why they signed up leading them to unsubscribe.

The problem is that information abundance equals attention scarcity. This is known as attention economics. Social scientist Herbert Simon was the first person to discuss this concept when he wrote “in an information-rich world, the wealth of information means a dearth of something else: a scarcity of whatever it is that information consumes. What information consumes is rather obvious: it consumes the attention of its recipients.” https://mangools.com/blog/wp-content/uploads/2017/11/Case-study-Launching-a-new-product-email-campaign-960x510.png

Online surveys: Consumers are asked to complete a survey, including their demographic information and product and lifestyle interests. This information is used as a sales lead for advertisers, who purchase the consumer's information if provided. The consumer may 'opt-in' to receive correspondence from the advertiser and is therefore considered a qualified lead.